Access to private base class?

Article View: comp.std.c++

Article #3678

#3678

From: Igor Boukanov
Date: Fri, 15 Mar 1996 00:33

23 lines
1508 bytes

Here the lines from September DWP, 5.2.6.9:

 [Example:
class A { virtual void f(); };
class B { virtual void g(); };
class D : public virtual A, private B {};
void g()
{
    D   d;
    B*  bp = (B*)&d;  // cast needed to break protection
...

Does "cast needed to break protection" mean that in this case it is possible 
to get access to the private base class by simple cast expression? 

--
Regards, Igor Boukanov (igor.boukanov@fi.uib.no).
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From: boukanov@sentef1.fi.uib.no (Igor Boukanov)
Message-ID: <4ia9bj$atj@ugress.uib.no>
X-Original-Date: 14 Mar 1996 23:16:03 GMT
Path: arc1-ca.pugleaf.net!in2.uu.net!bounce-back
Date: 15 Mar 96 00:33:41 GMT
Approved: fjh@cs.mu.oz.au
Newsgroups: comp.std.c++
Subject: Access to private base class?
Organization: Fysisk institutt, Universitetet i Bergen
Summary: Some lines from DWP show how to get access to private base class(???).
Keywords: C++, private class
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